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MCAT Question A Day - 5/1/14 - Answer!

In a human renal cortical cell, the Krebs cycle occurs in the:

A.  cytosol.
B.  mitochondrial matrix.
C.  inner mitochondrial membrane.
D.  intermembrane space.

B is correct. The Krebs cycle occurs within the mitochondrial matrix in all eukaryotic cells.

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